Disk valve.



J. ROTHGHILD & H. GONOVER.

DISK VALVE.

APPLICATION FILED MAY 16, 1910 Patented J an. 16, 1912.

Attest: I Q4 Inventors:

- y Jaw K. W5;

l huuRAml CUWWASIHNGTON, n. c.

I well within the casing. It is provided with a unrrnn STATES PATENT onnron.

JOSEPH ROTHCHILD, OF NEW YORK, AND HENRY S. CONOVER, OF BROOKLYN, YORK, ASSIGNOR-S TO THE ROTHGHILD PRESSURE SPECIALTIES COMPANY, OF

CANTON, NEW YORK, A CORPORATION OF NEW YORK.

DISK VALVE.

Specification of Letters Patent.

Patented Jan. 16, 1912.

To all whom it may concern:

Be it known that we, JOSEPH ROTHGHILD and HENRY S. CoNovnR, citizens of the United States, residing at New York, in the county and State of New York, and Brooklyn, in the county of Kings and State of New York, respectively, have invented certain new and useful Improvements in Disk Valves, of which the following is a specification. I

This invention relates to valves and its novelty consists in the construction and adaptation of the parts as will be more fully hereinafter pointed out.

In the drawings, Figure l is a longitudinal section of the valve casing and a side elevation of the parts contained therein; Fig. 2 is a longitudinal section on the plane of the line 22 in Fig. 1; Fig. 3 is a side elevation of the valve disk and tiltableframe and a partial longitudinal section through the casing; Fig. 4 is a top plan View of the parts and a horizontal section through the casing on the plane of the line 44 in Fig. 1 and Fig. 5 is a perspective view of the valve spindle.

In the drawings, is a tubular valve casing suitably threaded. internally or externally at its ends so that it may be connected to the pipes which it is to control. It'is preferably made of cast metal for instance cast iron and may be provided internally at one portion, where the valve hereinafter described is to be located, with a lining or shell 11 of brass or other relatively soft metal. At a convenient point the casing is apertured and provided with an internally threaded external annular flange 12. At a diametrically'opposite point it is also apertured and provided with an iniernally smooth external annular flange 13 which may be inwardly extended to form an internal annular flange 130. It is also provided beneath the lower surface of the valve with a series of threaded apertures 14, 14 adapted to receive supporting pins 15, 15 presently to be described.

A thimble '16 having a smooth cylindrical recess 17 and threaded externallyis adapted to be placed within the threaded aperture 12. The inner end. of the thimble extends stop flange 18 to limit its inward position and with a polyhedral extremity 19 so that it can be engaged like a hexagonal nutwith a wrench. This forms in effect a removable bearing for the valve frame trunnion.

A separable valve spindle 20 comprising a cylindrical body' 21 is adapted to rotate within the annular flange. 13 as a hearing. Its inner end is expanded to form a stop flange 22 and it terminates in a squared head 23 adapted to engage an aperture in the cross-head presentl' to be described. A

handle 24 is adapted to be Secaiifed to the spindle 20 by a set screw 25 or by-any other suitable means. A packing 26 of any suitable material may, if desired, be placed between the flange 22 and the inner wall of the casing 10 or flange 130 as the case may be.

Suspended within the casing 10 is a-tiltable valve frame comprising a cross head 30 having a depending flange 300 provided with an outwardly projecting trunnion 31 adapted to engage the cylindrical recess 17 of the thimble 16 and to turn within the same. It also has a depending flange 32 provided with asquared aperture 33 to receive the squared end 23' of the valve spindle 20. It also has an arm having a depending lug or flange 34 on one side and an arm having a similar depending lug or flange 35 on its opposite side. A valve member consisting of a circular plate fitting loosely within the casing 10 is provided with upwardly extending lugs arranged in pairs 41, 41, and 42, 42. A link 43 is pivoted by a pin 44 between the lugs41, 41 at its lower end, and by a similar pin 440 to the flange 34 of the cross head 30 at its top and two links 45, 45 are pivoted by a cross pin 46 outside of'the lugs 41, at their lower ends and by a similar pin 460 to the flange 35 at their upper ends. These links are all of the same length and the centers of their pivots are all the same distance apartso that when the cross head 30 is tilted the valve plate, 40 is necessarily simultaneously tilted to the same extent and in the same direction.

At the center of the plate 40 there is arranged a threaded boss 48 adapted to engage a threaded aperture in a lower valve plate 49 of substantially the same sizeand shape as:

the plate 40. Between the plates 40 and i9 is arranged a packing ring 50 slightly greater in diameter than either plate and firmly held between them and adapted when the plates are tilted by means of the movement of the cross head 30 tightly to engage the inner walls of the valve casing or of its lining 11. c The pins have a threaded body 150, and 10 a squared head 151 and an inner smooth end 152. They may be of any size or number and arranged in any desired manner around the casing. v 7

It is obvious from the foregoing descrip- 5 tion that when the handle 24 is tilted, the cross'head 30 will be tiltedybecause the square head 23 of the spindle will engage the squared aperture in the flange 32 and the trunnion 31 will turn freely in the thim- 2o ble 16. The tilting of the cross head will also tilt the links 43 and 45, drawingthe link or links up on one side and down on the opposite side and thus moving the valve plates 40 and 49 and packing ring 50 either to the position shown in,full outline in Fig.

- 2 from the position shown in dotted outline in Fig. 3, or vice versa.

The limit of tiltability of the framework composed of the cross head and its links is determined by a stop member 430 secured to one of the links and which will engage the surface of'the cross headwhen a predetermined amount of movement has taken place.

The pins 15 are designed to'form an additional support for the lower valve plate 49 when the pressure upon the upper valve plate is excessive. It enables the valve to be used in conduits when the fluid pressure is very great. I 40 The valve is a truly balanced valve because the pressure is the same on each side of the medial plane passing through the center of oscillation of the cross head. The parts of this valve are simple in construction and can readily be made by ordinary machine tools without any special mechanism. They are readily assembled and kept in order and readily removed from the casing when it is desired. The valve is efiicient even under unusual pressures and is readily moved by means of the handle provided for that purpose.

What we claim as new is 1. The combination with a valve disk of a tilting frame work consisting of a cross head, two transverse pivots secured thereto, brackets secured to the valve disk, two transverse pivots secured thereto and links secured to the pivots on the cross head and the corresponding pivots on the valve disk.

2. A tilting frame for a valve disk comprising a cross head provided on one side with a laterally extending pivot and on the other side with means for turning it consisting of a squared aperture and a key provided with a handle adapted to fit therein,

in combination with a valve disk and connections between it and the cross head.

3. A tilting frame for a valve disk comprising a cross head, means for oscillating it, two depending links pivoted one on one side of the center of oscillation and one on the other side, in combination with a valve disk and pivot connections between it and the links.

4. A tilting frame for. a valve disk comprising a cross head, means for oscillating it consisting of a pivot on one side and a handle on the other, two depending links pivoted one on one side of the center of oscillation 8( and one on the other side, in combination with a valve disk and pivot connections between it and the links. H

5. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends. I

6. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends, in combination with means for oscillatingthe cross head.

7. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk-to which the links are secured at their other ends, in combination with means for oscillating the cross head consisting of a removable detachable handle.

8. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends, in combination with means for oscillating the cross head consisting of a pivot on one end and a detachable handle on the other end.

.9. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends, in combination with means for oscillating the cross head consisting of a pivot on one end and a detachable handle on the other end in combination with a valve casing inside of which the frame is placed and in which it is adapted to oscillate.

10. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends, in combination with means for oscillating the cross head consisting of a pivot on one end and a detachable handle on the other end in combination with a valve casing provided with a removable bearing to receive the cross head pivot and a fixed bearing to receive and support the handle.

12. A tilting frame for a valve disk comprising a cross head provided on one side with a laterally extending pivot and on the other side with means for turning it consisting of a squared aperture and a key provided with a handle adapted to fit therein, in combination with a valve disk and connections between it and the cross head and means for limiting the extent to which it may be turned.

13. A tilting frame for a valve disk comprising a cross head, means for oscillating it, two depending links pivotedone on one side of the center of oscillation and one on the other side, in combination with a valve disk and pivot connections between it and the links and means for limiting the extent of its oscillation.

14. A tilting frame for a valve disk comprising a cross head, means for oscillating it, two depending links pivotedone on one side of the center of oscillation and one on the other side, in combination with a valve disk and pivot connections between it and the links and means for limiting the extent of its oscillation consisting of a stop secured to one of the links.

15. A tilting frame for a valve disk comprising a cross head, means for oscillating it consisting of a pivot on one side and a handle on the other, two depending links pivot-ed one on one side of the center of oscillation and one on the other side, in combination with a valve disk and pivot connections between it and the links and means for limiting the extent of its oscillation.

16. A tilting frame for a valve disk comprising a cross head, means for oscillating it consisting of a pivot on one side and a handle on the other, depending links pivoted one on one side of the center of oscillation and one on the other side, in combination with a valve disk and pivot connections between it and the links and means for limiting the extent of its oscillation consisting of a stop secured to one of the links.

17. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends and means for limiting the extent of its oscillation.

18. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends and means for limiting the extent of its oscillation consisting of a stop secured to one of the links.

19. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends, in combination with means for oscillating the cross head and means for limitingthe extent of its'oscillation.

20. A tilting frame for a valve disk comprising a cross head provided with two arms extending therefrom in opposite directions, pivoted links depending from the arms and a valve disk to which the links are secured at their other ends, in combination with means for oscillating the cross head and means for limiting the extent of its oscillation consisting of a stop secured to one of the links.

In testimony whereof we affix our signatures in presence of two witnesses.

JOSEPH ROTHOHILD. HENRY S. CONOVER. Witnesses:

E. W. SOHERR, J r., S. J. Cox.

Copies of this patent may be obtained. for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

